Pumping apparatus.



VAN P. BAILEY.

PUMPING APPARATUS. APPLICATION FILED MAY 9. 1913.

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PUMPING APPARATUS.

APPLICATION FILED MAY 9, 1913.

Patented May 25, 1915.

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VAN P. BAILEY, OF INDIANAPOLIS, INDIANA.

PUMPING APPARATUS.

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Application filed May 9, 1913.

To all whom it may concern Be it known that I, VAN P. BAILEY, a citizen of the United States, residing at Indianapolis, Marion county, and State of Indiana, have invented and discovered certain new and useful Improvements in Pumping Apparatus, of which the following is a specification.

My invention relates to automatic pump apparatus and its object is to provide a pump having a motor adapted to be operated by a fluid power medium and adapted to have positive driving connection with the shaft or other suitable part of the operative mechanism of a water raising pump.

Other objects of the invention are to provide an efiicient motor device for operating the pump and to avoid the use of stuffing boxes in the motor part of the apparatus.

With these objects and others in view, my invention is embodied in preferable form in the apparatus hereinafter described and illustrated in the accompanying drawings.

In these drawings, Figure 1 is a side view in elevation, partly in section of the appara tus; Fig. 2, a similar view at right angles to Fig. 1; Fig. 3, a detail plan of the valve mechanism employed at each end of the pump motor; Fig. 4:, a vertical section of the power cylinder of the motor and the valve controlling means; Fig. 5, a detail front view partly in section of the upper valve showing same in intake position; Fig. 6, a section at right angles to Fig. 5; Fig. 7, a view similar to Fig. 5, showing valve in exhaust position, Fig. 8 a view at right angles to Fig. 7, and Fig. 9 a view similar to Fig. 5 from the opposite face of the valve casing.

Referring to the drawings, 1 is an inlet pipe adapted to have communication with a source of fluid under pressure, preferably with means for holding or creating a supply of compressed air, (not shown). Although the device is shown and described as employing compressed air as the preferable power medium, it is obvious that other fluids may be employed. The pipe 1 communicates with an upper branch 3 and a lower branch 4 of a fluid conveying structure and the fluid admitted through the pipe 1 is adapted to be received and conveyed through both of the branches 3 and 4. The upper branch 3 leads to a valve chamber 5, in which is mounted a rotary valve 6, having an elongated port 7 and a circular port 8. The port 7 is adapted to establish com- Specification of Letters Patent.

Patented May 25, 1915.

Serial No. 766,581.

munication between ports 9 and 10 which are formed in a plug 11 and the wall of the casing 12 respectively. Port 10 is adapted to lead to the atmosphere and when com munication is established between said port, and the port 9 by means of the port 7, the motive fluid will exhaust into the air from the motor at the upper end of the apparatus. By means of the port 8 communication between the upper end of the pipe 3 and the upper end of a cylinder 13 is established. In this cylinder 13 is mounted a double piston power member having an upper piston 1 1 and a lower piston 15 which are connected by piston rod 16. Leather washers 17 and 18 are secured to this piston rod between washers for the purpose of tightly closing the cylinder in the forward movement of each piston. This power member is adapted to be moved vertically up and down by compressed air admitted alternately above the upper piston and below the lower piston from the inlet pipe 1. To effect this alternate admission of the motive fluid to the opposite ends of the cylinder, a double valvecontrolling piston mechanism is mounted on the exterior of the cylinder 13. This mechanism comprises an upper piston chamber 19, which communicates with the cylinder 13 by means of a port 20 and in which is adapted to move vertically a piston 21. A lower casing 22 is also provided in which is adapted to move a piston 23 which is controlled by air admitted through a port 21 communicating with the cylinder 13.

The pistons 21 anc 23 are connected by means of a common piston rod 25. An arm 26 extends from this piston rod and the outer end of this arm is held between collars 27 fixed on a vertically reciprocable rod 28. The upper end of this rod is connected to a lever 29 which is fixed on a rotatable shaft 30 carrying at its inner end the rotary valve 6. A spring 31 is interposed between the lever 29 and the valve casing. Similarly the other end of the vertically movable rod 28 is connected to a lever 32, fixed on a rotatable shaft 33, the inner end of which is fixed to a rotary valve 34- mounted in a casing 35, said valve and its casing corresponding in construction and function with the upper valve and casing 6 and 5. It will be seen that by the above arrangement, the valves 6 and 34 are adapted to be alternately operated by the reciprocation of the rod 28 to thereby alternately admit and exhaust the compressed air to and from each end of the.

a space between the ports 20 and 24 of the upper and lower controlling pistons 21. and 23 respectively, whereby communication between said auxiliary pistons and the slots in the cylinder is prevented, except when the respective ports of the auxiliary pistons are uncovered by the main pistons in the travel of the latter toward their respective outer ends of the cylinder.

The cross head 36 is connected by suitable side rods 39 to a cross plate 40 which is adapted to move on guide rods 41. To the cross plate 40 is connected one end of the pump shaft 42. This pump shaft extends into the well tube 43 with which communicates a suitable-outlet pipe 44. The outlet pipe may becontrolled by a suitable faucet, (not shown) as is usual, and the pressure of the compressed air supply is so regulated that the pressure of the water from the well will be suflicient to balance the air pressure and thus prevent the operation of the pump until the water pressure is lessened by opening the faucet, whereby the pump will be permitted to automatically start in operation by the pressure of its motive fluid.

' It will be seen that by providing a double piston and having the cross head extending through the open slots in the power cylinder, and having the connection to the pump shaft made outside of the cylinder, a stuffing box for the power piston rod, or for the connecting rods between the piston rod and the pump shaft, is dispensed with. It is obvious that the pump shaft member 42 may representeither a shaft of a vertical lifting pump, a rotary impeller pump, a suction pump or a force pump.

In the operation of the device, air is admitted through the inlet pipe 1 and assuming the piston is so positioned that the air will pass upward, it will enter the valve casing 5 and pass through the port 8, controlled by the valve 6, into the upper'end of the cylinder 13 driving down the piston 14 and thus carrying downward the cross head 36, side rods 39 and thereby operating the pump shaft.

When the piston 14 has descended sufli- 'ciently far to uncover the port 20 leading into the auxiliary piston casing 19, the compressed air will escape from the cylinder above the main piston 14 into the chamber of this casing and thereby force downwardly the piston valve 21, which movement will carry downward the vertically reciprocable rod 28, thereby through lever 32 and shaft 33, turning the lower rotary valve 35 on its seat so as to thus close the exhaust, which the upper end of the cylinder. Thereupon the'flow of the air will be reversed and it will be admitted to the lower end of the cylinder against the main piston 15 and the piston member will "be forced upwardly until the head 15 has uncovered the port 24 leading to the lower piston casing 22 whereupon the air will escape into the valve casing and by means of the piston123 and rod 28 the inlet port of the upper valve will be opened and the exhaust port of the lower valve opened and the movement of the motor again reversed. As before" stated, the pressure of the water'balances the air pressure and hence-the motor will be started in operation only when the water pressure is reduced, as by opening a faucet.

Having thus described my invention, what I claim is 1. In a pumping apparatus, a pump, a fluid driven motor having a cylinder, a double piston in said cylinder, separate yalve means operable to admit a pressure fluid to each end of saidcylinder against each piston member and to exhaust said fluid therefrom, and separate means for each piston member actuated by the cylinder pressurefor oper ating said valve means, substantially as derocable rod connected to both valves, valve controlling pistons operated by the pressure in front of the respective main pistons and connected to said rod, means of communication between the cylinder and each of said valve-controlling pistons, said means being alternately uncovered by the two main pistons, substantially as described. I

3. In an automatic pumping apparatus,

in combination with a fluid pressure motor having a cylinder and a double piston in said cylinder, means of communication between each end of said cylinder and a source of fluid under pressure, an auxiliary fluid receiving cylinder having upper and lower ports communicating with said main cylin- 7!- der, said ports being adapted to be alternately covered and uncovered by the piston members of said main cylinder, a double piston in sald auxlllary cylinder, valves controlling the admission of said pressure fluid 3 to the opposite ends .of said main cylinder,

means connecting said valves and auxiliary hand and seal at Indianapolis, Indiana, this piston, a cross arm connected to the main 28th day of April, A. D. nineteen hundred piston and extending through the main cyland thirteen.

inder, a pump, and rods connecting said VAN P. BAILEY. [Ls] 5 cross arm and the operative mechanism of Witnesses:

the pump, substantially as described. HENRY P. DOOLITTLE,

In Witness whereof, I have hereunto set my A. 0. RICE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

